NAICS 334515: Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals
This U.S. industry comprises establishments primarily engaged in manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals.  Examples of products made by these establishments are circuit and continuity testers, voltmeters, ohm meters, wattmeters, multimeters, and semiconductor test equipment.

ExioML sector: Medical, precision and optical instruments, watches and clocks (33)
Region: US | Year: 2022
Sector value added: 163416.090875 M EUR | Employment: 242.560449186 thousand persons
Sector GHG emissions: 6744317153.5 kg CO2 eq | Energy carrier net total: 172060.328352 TJ | Carbon intensity: 0.041270826620487776

Company: Trio-Tech International
Trio-Tech International TRT (U.S.: NYSE American) Trio-Tech International engages in the provision of third-party semiconductor testing and burn-in services. It operates through the following segments: Manufacturing, Testing Services, Distribution, and Real Estate.